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    <title>Document</title>
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        <h1>问卷调差</h1>
        <h2>你的爱好</h2>
        <hr>
        <label for=""><input type="checkbox" name="" id="" checked>游泳</label>
        <label for=""><input type="checkbox" name="" id="">睡觉</label>
        <label for=""><input type="checkbox" name="" id="">看出</label>
        <label for=""><input type="checkbox" name="" id="" checked>吃饭</label>
        <label for=""><input type="checkbox" name="" id="">打球</label>
        <label for=""><input type="checkbox" name="" id="">卖萌</label>

        <br><br>
        <button>全选</button>
        <button>反选</button>
        <button>不选</button>

        <script>
           

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